Photorefractive effect of ferroelectric liquid crystals with application of a biased alternating electric field

摘要

The photorefractive effect of a ferroelectric liquid crystal (FLC) was investigated with application of a biased alternating electric field. A two-beam coupling gain coefficient of 96cm(-1) was obtained for a 10 mu m-thick sample. The gain coefficient obtained was found to be much larger than those obtained with application of a DC electric field.